Characterisation of an antinematicidal compound from Leucaena leucocephala
O. K. Adekunle A C and M. A. Aderogba BA Department of Crop Production and Protection, Obafemi Awolowo University, Ile-Ife, Nigeria.
B Department of Chemistry, Obafemi Awolowo University, Ile-Ife, Nigeria.
C Corresponding author. Email: kolaade2002@yahoo.co.uk
Australasian Plant Disease Notes 3(1) 168-170 https://doi.org/10.1071/DN08066
Submitted: 29 April 2008 Accepted: 15 November 2008 Published: 1 December 2008
Abstract
Leucaena leucocephala is a small tropical tree used for a variety of purposes in agriculture, land management and homeopathic medicine. Quercetin, a flavonoid, was isolated and characterised from extracts of leaves of L. leucocephala and its effects on egg hatching and juvenile mortality of Meloidogyne incognita were investigated at 0.8, 0.4 and 0.2% in vitro. The compound was highly toxic to eggs and juveniles of the nematode at the three rates tested.
Additional keywords: phenolic compound, root-knot nematode.
Acknowledgements
The authors are grateful to Network for Analytical and Bioassay Services in Africa (NABSA), Department of Chemistry, University of Botswana, Gaborone for running NMR and Mass spectra of the isolated compound. Mrs. Abimbola Oluwaranti is thanked for running Statistical Analysis and drawing the curves.
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